Improvement in ash-sifters



MILTON DEAN AND ANDREW B. KINGSBBY KINGSBUBY ASSIGNOR TO SAID DEAN.

IMPROVEMENT IN ASH-SIFTERS.

Specification forming part of Letters Patent No. 193,230,

dated `July 17, 1877; application led April 10, 1877.

To all whom it may concern:

Be it known that We, MILTON DEAN and ANDREW B. KINGSBURY, of Utica, in the county of Oneida and State of New York, have iuvented certain new and useful Improvem'entsin Ash-Sifters and we do hereby declare that the following is a full,clear, and exact description thereof, which will enable others skilled in the art to which it appertains to make and use the same. reference being had to the accoinpanying drawings, and to the letters of reference marked thereon, which form apart of this specification, in which drawings- Figure l is a perspective view, showing the box-cover on the sifter-box, and the inclosed receiver under the discharge-port. Fig. 2 is a perspective view, showing the cover under the discharge-port to receive the sifted coal. Fig. 3 is a vertical section.

Our invention relates to ash-sitters, constructed and operated as hereinafter described.

A is a box of the proper size, provided with an inclined sieve, B. The upper part of the b'ox is provided with inclined plates a b, adjusted to form the receiving-hopper, having a throat, c, for receiving and conducting the unsifted coal and ashes to the sieve. The throat is covered with a lid or trap, d, having pivoted bearings in the sides of the box, adjusted to open and close the throat automati cally, or by means of the handle d1, extending througha slot in the back plate of the box, and connected to au eye on the side of the' lid, and provided with a notch, d2, to catch against the plate f, fastened to the box.

U represents a cover to the sifter-box, having pendent sides the proper width to fitthe recess under the exit-port sides forming a box sufciently deep to hold the sifted coal, when used for that purpose, as shown, adjusted under the exit-port in Fig. 2 of the drawings. D represents an-inclosed receiver, constructed to tit over the exit-port of the sifter, as shown in Fig. l of the drawings. E is a drawer, extending under the sieve to receive the sifted ashes. The lower part ofthe box is enlarged, to afford space for the sieve, and is provided with an exit-port, c1, extending over a recess, c2. The exit-port is provided with a lid, h,

adjusted on pivotal bearings, to open and close pivotal bearings, justing bar or handle, d1, having a notch, dz,

automatically the port to prevent the escape yof dust.

When a small quantity, or only Va hodt'nl at a time, is to be sifted, the inclosed sifter D is adjusted over the exit-port, and the lid dis adjusted by means ot' the handle di, to hold the coal and ashes in the hopper till the cover C is placed on the box, to prevent the escape of dust, and then the trap is opened, allowing the ashes and coal to pass out of the hopper to the sieve, the ashes sieve into the drawer, and the coal being conducted through the exit-port into the receiver, the lid h opening Vand closing automatically, to prevent the, escape of dust.

When large quantities are to be sifted, the

cover C is adjusted in the recess cz under the exit-port, as shown in Fig. 2 of the drawings, and the trap d is adjusted to open and close automatically, to prevent the escape of dust.

What we claim as new, and desire to secure by Letters Patent, is p l. The ash-sifter, having extending over a recess, c2, in combination with a removable cover, G, having pendent sides the properlwidth to t the recess under the exit-port, adapting it tol be used interchangeably as the cover ofthe ash-sifter, and as the receiver of the sifted coal, substantially as described.

2. In an ashsifter, the lid or trap d, having and provided with an adan exit-port, c1,

in combination with the plate f, for opening and closing the throat of the receiving-hopper of the sifter, substantially as described.

3. The removable cover C and the receiver D, in combination with the ash-sitter having the inclined sieve B and traps or lids d h, ad-A justed to operate substantially as and for the purposes described.

In testimony that we claim the foregoing as our own we afx our signatures in presence of two witnesses.

MILTON DEAN. ANDREW B. KIN GSBUBY.

Witnesses J oHN BACH, W. N. REEsE.

, oF UrIoA, NEW YORK; SAID 4 passing through the 

